Chris-Wang 200 Sheets Hole Punched and Perfed Words Study Card Flash Cards with 4 Metal Binder Rings, Style A(4 Ruled Line Front, Blank Reverse) Size: 9x5.4cm Material: Made of thick craft paper Get ready for studying with these flash card sets, good for beginner of Chinese Hanzi characters Includes 4 sets of 50 cards each on a binder ring Style A: Front: 4 Ruled Line; Reverse: Blank